Mass urbanization of the world’s population is an unprecedented trend worldwide. The most important reason why people are moving to cities is economic. People are moving to the cities because that’s where they can find jobs and earn money. Until the 20th century, the major source of employment, full and part-time, was farming. Now, according to recent statistics, no more than 15 percent of all jobs are connected to farming. Jobs now are being created in information technology, manufacturing and service areas, such as tourism and financing, and all of these new jobs are in or around major cities.